Hello Mohit,
- Are other users also facing this problem?
- Check if you have entered the correct system name in System section.
- Check if there is a CMS running on the BO Server machine.
- Are you able to login to CCM with the same credentials?
Check if the CMS is able to communicate with the CMS database and if it is running with a Service Account in case of a clustered\distributed environment.
Regards,
Vaidehi